2601 search results - page 480 / 521 » Secure Rewarding Schemes |
ICIP
2008
IEEE
16 years 1 months ago
2008
IEEE
Halftone image watermarking techniques that allow automated extraction of the embedded watermark data are useful in a variety of document security and workflow applications. The p...
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ICIP
2003
IEEE
16 years 1 months ago
2003
IEEE
This paper considers the problem of encoding a secret binary image SI into n shares of meaningful halftone images within the scheme of visual cryptography (VC). Secret pixels enco...
ICML
2009
IEEE
16 years 19 days ago
2009
IEEE
Conventional clustering methods typically assume that each data item belongs to a single cluster. This assumption does not hold in general. In order to overcome this limitation, w...
WWW
2007
ACM
16 years 15 days ago
2007
ACM
In this paper we study the privacy preservation properties of a specific technique for query log anonymization: tokenbased hashing. In this approach, each query is tokenized, and ...
STOC
2009
ACM
16 years 13 days ago
2009
ACM
We put forth a new computational notion of entropy, which measures the (in)feasibility of sampling high entropy strings that are consistent with a given protocol. Specifically, we...